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Meeting 2027 TMS Annual Meeting & Exhibition
Symposium Microstructure-Sensitive Design and Advanced Characterization: An MPMD/SMD Symposium Honoring David T. Fullwood
Presentation Title Coupling of a Large Strain Elasto-Viscoplastic Fast Fourier Transform Constitutive Model with the Implicit Finite Element Method
Author(s) Noah Munholand, Benjamin Anglin, Ryan Beishline, Miroslav Zecevic, Ricardo Lebensohn, Marko Knezevic
On-Site Speaker (Planned) Noah Munholand
Abstract Scope While a number of mean field crystal plasticity models such as self-consistent have been coupled to the implicit finite element (FE)_method, only a few full-field models such as a small strain elasto-viscoplastic fast Fourier transform (EVPFFT) provide a constitutive law in FE frameworks. This paper presents an implementation of the non-periodic large strain, elasto-viscoplastic fast Fourier transform (NP-LS-EVPFFT) crystal plasticity model into the implicit FE method via a user material (UMAT) subroutine of ABAQUS Standard. NP-LS-EVPFFT provides the constitutive response at every integration point via the response of an explicit microstructural cell to strain in a parent finite element, thus allowing the FEs to model geometrical effects while still capturing the response of an explicit microstructure. Several benchmarks and applications are presented to illustrate utility of the developed FE-EVPFFT.
Proceedings Inclusion? Planned:
Keywords Computational Materials Science & Engineering, Modeling and Simulation,

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